code: def corpus(self, tasks_base_path):
      return flair.datasets.ClassificationCorpus(
          tasks_base_path / "regression",
          label_type=self.train_label_type,
      )
  
file_path: flair/tests/models/test_text_regressor.py
imports: import pytest
  import flair
  from flair.embeddings import DocumentRNNEmbeddings, WordEmbeddings
  from flair.models.text_regression_model import TextRegressor
  from tests.model_test_utils import BaseModelTest
label_desc: Use image node_id 3 for calling the TestTextRegressor obj's underlying member method code with example usage: obj.corpus(tasks_base_path) and returns: flair